function bgMove(Tip) {

    var moveTip = {
        jump : Tip.jump || 10  ,
        bgImgurl : Tip.bgImgurl || "images/bg1.png"  ,
    }
    // var moveBg = document.getElementById("move");
    // console.log(moveBg);
    // moveBg.style.backgroundImage = "url(" + moveTip.bgImgurl + ")";

    window.onload = function () {
        var moveBg = document.getElementById("move");
        var moveL = document.getElementById("moveL");
        var moveR = document.getElementById("moveR");
        var body = document.getElementsByTagName("body");

        var width  = window.innerWidth;
        var bgImg = new Image();
        bgImg.src = moveTip.bgImgurl;
        var ImgW = bgImg.width - moveTip.jump * 1.5 ;
        var num = 0;
        var moveInterL;
        moveL.onmouseover = function () {
            clearInterval(moveInterR);
            clearInterval(moveInterL);
            if (num <= 0) {
                return;
            }
            moveInterL = setInterval(function () {
                if (num <= 20) {
                    clearInterval(moveInterL);
                }
                num -= moveTip.jump;
                moveBg.style.backgroundPositionX = -num + "px";
            },15)
        }
        var moveInterR;
        moveR.onmouseover = function () {
            clearInterval(moveInterR);
            clearInterval(moveInterL);
            if (num >= ImgW - width) {
                return;
            }
            moveInterR = setInterval(function () {
                if (num >= ImgW - width) {
                    clearInterval(moveInterR);
                }
                num += moveTip.jump;
                moveBg.style.backgroundPositionX = -num + "px";
            },15);
        }
        body[0].onmouseout = function () {
            clearInterval(moveInterR);
            clearInterval(moveInterL);
        }
    }
}